Current transducer with integrated primary conductor
US11609248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2019 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Jul 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/97
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Electrical current transducer including an insulating body, a magnetic core comprising a central passage and a magnetic circuit gap, a magnetic field detector positioned in the magnetic circuit gap, and a sheet metal leadframe conductor arrangement comprising a primary conductor for carrying the current to be measured and secondary conductors for connecting the magnetic field detector to an external circuit, the primary conductor comprising a central portion extending through the central passage of the magnetic core, lateral extension arms extending from opposite ends of the central portion, and connection ends for connection to an external conductor, the secondary conductors comprising a plurality of conductors, each conductor comprising a sensing cell connection pad substantially aligned with the central portion of the primary conductor and a connection end for connection to the external circuit, the insulating body comprising an inner overmold portion surrounding a central portion of the primary conductor and forming a core guide positioning and insulating the magnetic core with respect to the leadframe conductor arrangement. The insulating body further comprises an outer overmo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.